(as|) thin as a rake
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used to refer to someone who is extremely thin, often in an unhealthy way
The phrase "thin as a rake" is an idiomatic expression that dates back several centuries. It originated from the comparison between someone's thinness and the slim shape of a garden rake. It is used to describe someone who is extremely thin or skinny. It emphasizes the person's lack of body mass and suggests that they have a slender physique.
- Despite his love for food, Peter remains thin as a rake due to his high metabolism.
- Lisa is as thin as a rake and she struggles to gain weight.